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CIRCUIT 1

Total questions: 93

Worksheet time: 2hrs 53mins

Name
Class
Date
1.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
2.

Why electrical wiring usually are covered with a layer of plastic?

a)

To make it look pretty

b)

To help electricity flow along the wire

c)

To make it safe

d)

To add more energy

3.

Why is electrical wiring usually made from copper?

a)

Because copper is shiny

b)

Because copper conducts electricity

c)

Because copper is not magnetic

d)

Because copper insulate electricity

4.

Why is a bulb brighter when it is powered by two batteries rather than one?

a)

Because the flow of electricity in the circuit is less

b)

Because the flow of electricity in the circuit is the same

c)

Because the flow of electricity in the circuit is greater

d)

Because the flow of electricity will go backward

5.
The wire that gives off the light in a light bulb.
a)
fahnestock clip
b)
support wires
c)
filament
6.

Why is a battery important in an electrical circuit?

a)

As a source of energy.

b)

As a path for electricity to flow through.

c)

As a connector to connect all parts of a circuit.

7.

Why must parts of a circuit be properly connected before the bulb can light up?

a)

To ensure that the bulb can light up.

b)

To ensure that the battery can produce light in a closed circuit.

c)

To ensure that electric current can flow through the closed circuit.

8.

Look at the diagram. Why did the bulb not light up?

a)

The bulb was fused.

b)

The battery had not enough electric current to light up the bulb.

c)

The switch was opened and prevented electric current from flowing through the circuit.

9.

Look at the circuits in the diagram. In which circuit will the bulb be brighter?

a)

Circuit A

b)

Circuit B

c)

Both circuits, the bulbs will have the same brightness.

10.
This is the symbol for a _____?
a)
Lamp
b)
Water wheel
c)
Loudspeaker
d)
Motor
11.
What is a circuit?
a)
an outlet or switch
b)
a path which an electric current flows
c)
a poor conductor
12.
What is an electric current? 
a)
the flow of electricity 
b)
electricity moving in only one direction
c)
a switch that gives power
13.
What is a switch? 
a)
part of the toaster that you plug into the wall
b)
an outlet that gives power
c)
part of a circuit that starts or stops the electricity
14.
Electric current moves in only one direction. 
a)
True
b)
False
15.
A conductor is ____________
a)
something that allows electric current to flow easily
b)
something that limits the flow of electricity
16.
All metals conduct electricity equally well. 
a)
True
b)
False
17.
What are filaments? 
a)
resistor's in the toaster's circuit
b)
wires that heat up when they conduct electricity
c)
both 
18.
A __________ is good at conducting electricity
a)
conductor
b)
resistor
c)
circuit
19.

A combination of two or more electric cells is called _____

a)

Electric circuit

b)

Battery

c)

Terminals

d)

None of these

20.

An electric bulb has ____ terminals.

a)

3

b)

4

c)

1

d)

2

21.

_____ is an electric device which easily closes or opens an electric circuit.

a)

Filament

b)

Electric bulb

c)

Electric switch

d)

Electric cell

22.

A material which does not allow the electricity to pass through it is _____

a)

Conductor

b)

Electric cell

c)

Insulator

d)

None of these

23.
Label the circuit
a)
closed circuit
b)
complete circuit
c)
incomplete circuit
d)
working circuit
24.
A light bulb will shine brighter when
a)
An extra light bulb is added to the circuit
b)
An additional battery is added
c)
A smaller battery is used
d)
The switch is open in the circuit
25.
Electricity is the flow of _________.
a)
Protons
b)
Neutrons
c)
Electrons
26.
Which subatomic particle has a negative charge?
a)
Proton
b)
Neutron
c)
Electron
27.
a)
Series Circuit
b)
Parallel Circuit
28.
a)
Series Circuit
b)
Parallel Circuit
29.
A series circuit has ____ path(s) that the electric current can take. 
a)
One
b)
Two 
c)
Three 
d)
Four
30.
In an electrical circuit, electrons move from the __________.
a)
Negative pole to negative pole
b)
Negative pole to positive pole
c)
Positive pole to positive pole
31.
In a parallel circuit, if one connection is broken, all of the connections stop working.
a)
True
b)
False
32.
Which of these objects is an insulator?
a)
Copper Wire
b)
Paper Clip
c)
Steel Pole
d)
Rubber Gloves
33.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
34.
Which statement is true?
a)
The light bulb will light up because the  circuit is complete.
b)
The light bulb will light up because the  circuit is broken.
c)
The light bulb will not light up because the  circuit is complete.
d)
The light bulb will not light up because the  circuit is broken.
35.

What needs to be done to this circuit so that the lamp lights up?

a)

Close the switch

b)

Add a source and close the switch

c)

Add another lamp

d)

Add another lamp and a switch

36.

1. Which switch or switches must be closed to make the lamps light?

a)

Only switch 1

b)

Only switch 1

c)

Switches 1 and 2

d)

Switches 1 , 2 and 3

37.

Tammy makes a complete simple circuit with one bulb and three batteries. The bulb lights for an instant and then goes out. Why?

a)

Too much electricity flows through the bulb's filament

b)

Not enough electricity flows around the circuit

c)

The batteries are flat

d)

The batteries are not good

38.

Peter has connected two bulbs across two batteries in a simple circuit. How can she make the bulbs dimmer?

a)

Replace one of the batteries with a section of wire

b)

Replace one of the bulbs with a section of wire

c)

Replace one of the batteries with a cork

d)

Replace the batteries for more wire

39.

If lamp 1 is unscrewed from its holder, what will happen to lamp 2?

a)

It will get brighter

b)

It will stay the same brightness

c)

It will go out

d)

Nothing will happen

40.

Why is a bulb brighter when it is powered by two batteries rather than one?

a)

Because the flow of electricity in the circuit is less

b)

Because the flow of electricity in the circuit is the same

c)

Because the flow of electricity in the circuit is greater

d)

Because the flow of electricity will go backward

41.

Which of the following materials is an electrical conductor?

a)

Silver spoon

b)

Silver-colored plastic spoon

c)

cooper spoon

d)

wooden spoon

42.

A material that does NOT let electricity pass through it is called ...

a)

An electrical conductor

b)

An electrical insulator

c)

An electrical source

d)

An electric appliance

43.
This is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
44.
This is the symbol for a _____?
a)
an AC current source
b)
a DC current source
c)
a battery
d)
a single cell
45.
This is the symbol for a _____?
a)
an AC current source
b)
a DC current source
c)
a battery
d)
a single cell
46.
A device that makes electricity by using chemical reactions, stores energy until it is needed
a)
circuit
b)
battery
c)
insulator
d)
copper wire
47.
A path followed by an electric current
a)
open circuit
b)
flow
c)
current
d)
circuit
48.
A complete electrical circuit or path through which electricity or current can pass or flow
a)
open circuit
b)
circuit
c)
closed circuit
d)
current
49.
Thin, flexible thread made of copper
a)
battery
b)
electromagnetism
c)
open circuit
d)
copper wire
50.
Flow of electricty in a wire or other conductor
a)
closed circuit
b)
current
c)
open circuit
d)
conductor
51.
A circuit or electrical path that is broken or incomplete so electricity cannot flow through it.
a)
open circuit
b)
conductor
c)
insulator
d)
closed circuit
52.
Which of these best completes the circuit?
a)
rubber band
b)
metal nail
c)
leather shoelace
d)
wooden toothpick
53.
A fifth grade class constructed this circuit.  Which of these objects most likely made the light glow when connected to points X and Y?
a)
plastic straw
b)
cotton string
c)
aluminum foil
d)
rubber eraser
54.
Which of these substances conducts electricity the best?
a)
wood
b)
brick
c)
copper
d)
plastic
55.
The electrician in this picture is wearing rubber gloves for protection.  The purpose of the rubber gloves is to --
a)
keep the electrician dry
b)
create an electrical circuit
c)
produce electricity
d)
protect the electrician
56.
What material would be safest to use as an insulator to cover electrical wires?
a)
rubber
b)
tin
c)
aluminum
d)
water
57.
This image represents what type of circuit?
a)
open
b)
closed
c)
series
d)
parallel
58.
Will the light bulb in this circuit light and why/why not?
a)
yes, because it has two batteries
b)
no, because the switch is open
c)
yes, because it is in a circuit
d)
no, because the bulb is burned out
59.
What type of circuit is represented by the diagram?
a)
closed
b)
series
c)
open
d)
parallel
60.
If bulb 1 burns out, what will occur?
a)
bulbs 2 and 3 will go out
b)
bulbs 2 and 3 receive more volts
c)
bulbs 2 and 3 will stay lit
d)
nothing will happen
61.

A student builds a circuit made up of a battery, two light bulbs, and a switch. What will the student most likely observe in this circuit?

a)

Light bulb 1 and light bulb 2 will both be on

b)

Light bulb 1 will be off, but light bulb 2 will be on

c)

Light bulb 1 and light bulb 2 will both be off

d)

Light bulb 1 will be on, but light bulb 2 will be off

62.

The diagram shows a series circuit with three lit bulbs. How many of the bulbs will remain lit if the wire is cut a the point shown by the arrow?

a)

0

b)

1

c)

2

d)

3

63.

A group of students built the circuit shown above. The lightbulb does not glow. Which statement explains this observation?

a)

The battery is not charged

b)

The lightbulb is not part of a complete circuit

c)

The circuit does not have a switch

d)

The bell uses most of the energy from the battery

64.

Students constructed a circuit using different-colored lightbulbs. What will happen if Switch 3 is closed and the other switches are left open?

a)

Only the white bulb will operate

b)

None of the bulbs will operate

c)

Only the white and yellow bulbs will operate

d)

Only the red and blue bulbs will operate

65.

The diagram shows an electric circuit with four bells that a student plans to build. When the student connects the wire as shown, which of the bells will ring?

a)

Bell 1 only

b)

Bells 1 and 4 only

c)

Bells 3 and 4 only

d)

Bells 1, 2, 3, and 4

66.
Is the following photo of an open circuit or closed circuit? 
a)
A closed circuit which allows electricity to flow
b)
An open circuit which does not allow electricity to flow
67.
What kind of circuit is this?
a)
series
b)
parallel
68.
What is a Parallel circuit? 
a)
Has only one path 
b)
Has more than one path 
c)
Allows energy to travel through easily 
d)
Has only one light bulb
69.
The picture shows an electrical circuit. This circuit is a series circuit because: 
a)
It has 3 light bulbs.
b)
The same current flows through all three light bulbs.
c)
It uses a single battery.
d)
The electrical current is divided between the three light bulbs.
70.
As the resistance of a circuit increases, the current will...
a)
increase
b)
decrease
c)
stay the same
71.

How many lightbulbs will work if there is a break in the circuit at POINT A?

a)

1

b)

2

c)

3

d)

NONE

72.
This circuit won't work. What essential part is missing from this circuit?
a)
resistance
b)
source of electric current
c)
conductor
d)
ammeter
73.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
74.

What is a circuit with several paths for electricity to flow?

a)

conductor

b)

series circuit

c)

parallel circuit

d)

open circuit

75.

A material that does NOT let electricity pass through it is called ...

a)

An electrical conductor

b)

An electrical insulator

c)

An electrical source

d)

An electric appliance

76.

What is a circuit that only has ONE path for electricity to flow?

a)

series circuit

b)

closed circuit

c)

parallel circuit

d)

light bulb

77.
An incomplete circuit is shown.
To complete the circuit, a wire should be placed from —
a)
Point D to Point C
b)
Point B to Point C
c)
Point A to Point D
d)
Point B to Point D
78.
This circuit has a battery, buzzer, and switch.
When the switch is closed the buzzer will sound because -
a)
the switch gives energy to the battery
b)
the buzzer is made of special plastic
c)
the wires are cooled by the surrounding air
d)
electricity can flow in a complete path
79.
Which of the following can work as an energy source?
a)
Battery
b)
Light bulb
c)
Wire
d)
All of them
80.

Why does the following circuit not work?

a)

The light bulb is broken

b)

The switch is closed

c)

The wood block is an insulator

d)

The battery is dead

81.

The circuit does not work, what could you do to allow the circuit to work?

a)

Add another light

b)

Add another battery

c)

Open the switch

d)

Remove the wood block and connect the wires

82.

What forms of energy are you using if you close switch 1?

a)

light and electrical

b)

light, sound, and electrical

c)

light

d)

sound

83.

In order to produce ONLY LIGHT energy, which switch(es) would you need to close?

a)

switch 1 and switch 2

b)

switch 1, 2, and 3

c)

switch 2 and switch 3

d)

switch 1 and 3

84.

The light bulb does not turn on, which statement explains why it is not working?

a)

The battery is dead

b)

The light bulb is broken

c)

The bell is taking all of the energy

d)

The light bulb is not part of a complete circuit

85.

Does energy flow through an open or closed switch?

a)

open switch

b)

closed switch

c)

both open and closed

d)

neither

86.
What is an electrical circuit?
a)
lets you turn the energy on and off
b)
a closed path where where electricity flows
c)
stop electricity from flowing through
87.
What is a battery?
a)
switch
b)
power source
c)
insulator
88.
A complete circuit has .......
a)
a motor in it
b)
a switch in it
c)
two bulbs in it
d)
no breaks in it
89.
A student began building a circuit to light a bulb.  What else does the student need to produce light?
a)
a battery that has energy
b)
a wire that is insulated
c)
a switch that is open
d)
another bulb of the same size
90.
Lightbulbs use electricity to make light. What else do lightbulbs often give off?
a)
Food energy
b)
Heat Energy
c)
Solar Energy
d)
Wind Energy
91.
Which is NOT true of a series circuit
a)
One light bulb can be broken and other lights will still work.
b)
All loads are a single loop
c)
Adding more loads will lessen the current in the loop
92.
The type of circuit used in your home is a _______ circuit.
a)
series
b)
parallel
93.
Choose the correct sentence.
a)
This circuit will work because it is an open circuit.
b)
This circuit will work because it is a closed circuit.
c)
This circuit will NOT work because it is an open circuit.
d)
This circuit will NOT work because it is a closed circuit.

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